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2x-3y=1
x +2y=11
multiplica la segunda ecuacion por 2
2x-3y=1
2x+4y=22
restando ambas ecuaciones
-7y=-21
7y=21
y=3
reenplaza en la primera ecuacion
2x-3y=1
2x-3(3)=1
2x-9=1
2x=10
x=5